This Cal-Hawk Hex Cap Screw Assortment provides a wide variety of the most commonly utilized hex cap screws in standard automotive and household applications. Constructed with high grade steel for additional durability. Includes a plastic compartment box for quick organization which is easy to store and features a sizing layout guide inside. Handy kit for shop toolroom or toolbox, it makes a perfect gift for the working man in your life. Your going to need your Hex Bit Socket Set!